Cover plate for an electrical device



FIG. 1 is a perspective view of a cover plate for an electrical device showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a rear side elevational view thereof; and,

FIG. 7 is a front side elevational view thereof

The broken lines in the figure drawings show unclaimed environment only and form no part of the claimed design. 

CLAIM What is claimed is the ornamental design for a cover plate for an electrical device, as shown and described. 